Table 1 to Paragraph (c)
Tribal citation | Title/subject | Tribal effective date | EPA approval date | Explanations |
Northern Cheyenne Tribe, Northern Cheyenne Clean Air Act Tribal Implementation Plan | Entirety | December 20, 2016 | February 10, 2022 | The Tribal effective date is based on the date the Bureau of Indian Affairs (BIA) Superintendent of the Northern Cheyenne Agency approved the Tribe's Ordinance No. DOI-008 (2017) adopting the Northern Cheyenne Clean Air Act. |
40 C.F.R. §49.4200